Paper reed



May 30, 1933.

L. F. BARNUM PAPER REED Filed March 28, 1932 INVENTOR Lav/e Ffiezwzzw.

ATTORNEYS Patented May 30, 1933- PATENT oFFIcE A LESLIE r. BARNUM, orDETROIT, moment rerun REED Application filed. March 28, 1932. SerialN0.'601,602.

The present invention relates to a novel papers tacking strip and themethod of making the same.

In constructing automobile body frames and cushion spring frames metalchannel members are commonly used and in order that the upholsteringmaterial may be conveniently attached thereto there is usually provideda wood or fibrous composition insert 10, strip that is inserted andsecured in the channels so that the upholstering material may be tackedthereto. The present invention has asits primary object to provide sucha tacking strip formed of several strands or ribbons of spirally woundpaper which form a contfnu- 'ous reed or rope that'is compressed betweenrollers to form it to the required cross sectional shape and size.

Another object of the present invention is to provide a paper tackingstrip having a core formed of spirally twisted paper strands or ribbonsand to surround said core with paper strands or ribbons that are twistedin the opposite direction. Because of the present.

manner of twisting the paper the finished strip has no tendency tounwind or assume a corkscrew shape after the manner of a' paper tackingstrip that is formed of strands or ribbons that are all twisted in thesame direction. When the conventionally twisted paper strip is insertedin a metal channel the tendency of the paper strip to assume a corkscrewshape distorts the metal channel in such a way as to make assembly ofthe channel into the body frame diificult and sometimes impossible andthe present str p which avoids all tendency of twisting facilitatesrapid assembly of the channel members into the automobile frames. v

Another object of the present invention is to provide a method offorming reeds for basket workand the like, from paper strips or ribbonsin a manner whereby a very compact article is providedwhich will notwarp or twist as a result of stresses resulting from the particularmanneroin which it is formed by twisting such paper strips or ribbons.

With the above and other ends in view the invention consists in mattershereinafter set forth and more particularly pointed out in with aspindle 4 that is .the appendedclaims; reference being bad to theaccompanying drawing, in which Figure 1 is a vertical cross sectionalview of a machinefor forming the present tacking p;

Fig; 2 is a cross sectional view taken along the lines 2-2 of Fig. 1;

Fig. 3 is a diagrammatic .view illustrating the manner in which thepaper ribbons are mostened;

Fig. 4 is a view of a fragment of the strip still in an unfinishedstage, showing the paper ribbons partly unwound in order that theprogressive manner in which they combine to form the reed may beillustrated; i

Fig. 5 illustrates the reed or strip-in a finished stage, and

Fig. 6 illustrates a tacking strip having a diflerent cross sectionalshape.

Like characters of reference are employed throughout to designatecorresponding parts.

A-pair of disks 1 and 2 are secured in spaced relation by rods 3. Thedisk 1 is provided rotatably received in a vertical frame member 5 andthe disk 2 is provided with a hollow spindle 6 that is received in avertical frame member 7. A similar pair of disks 8 and 9 are secured inspaced relation by rods 10 and are provided with hollow spindles 11 and12 respectively. Thespindles'll and 12 are rotatably received invertical frame members 13 that are adapted to support the spindles-11and 12 in co-axial alignment with the spindles 4 and 6. A sprocket 14 issecured on the spindle 6 and a sprocket 15 is secured on the hollowspindle 12. -A sleeve 16 having a smoothly rounded head 17 is slippedinto the irmer end of the hollow spindlesfi and 12 in order to present asmooth entering end through which paper ribbons pass in a mannerpresently to be described without tearing the same.

A motor 18 is connected to a shaft 19 upon which is mounted a sprocket20 that is conncted by a chain 21 to the sprocket 14. A

gear 22 is mounted on the shaft 19 and meshes with a gear 23 on a shaft24 that carries a sprocket 25 which is connected by a chain 25 to thesprocket 15. It is obvious that by driving the sprocket 25 through thegears hof Mounted on each of the rods 3 isa roll 26 paper ribbon andmounted on each rod 10 is a roll 27 of paper ribbon. Before mountmg thepaper rolls 26 and 27 on their respective rods 3 and 10 they aremoistened in the manner illustrated in Fig. 3 wherein the ribbon 28 isunrolled from the shaft 29 onto the shaft 30 and is passed under theroller 31gthat forces the ribbon into the tank 32 so that it contactswith the liquid 33 contained therein. The shafts 29 and 30 are rotatedat a high rate of speed that prevents the ribbon remaining in the liquidlong enough to absorb a verygreat amount thereof.

A pair of rollers 34 are supported adjacent the end of the spindle 12 byany suitable frame members (not shown). One of the rollers carries asprocket 35 over which a chain 36 pass-es. The chain 36 engages asprocket 37 that is connected to a bevelled gear 38 that meshes with abevelled gear 39 on the shaft 19.

In order to commence manufacture of the present tacking strip it isnecessary to draw the ends of the ribbons 26 through the spindle 6manually and then rotate the disks 1 and 2 while the ends of the ribbons26 are held against rotation which forms a spirally twisted rope 40.When sufficient rope 40 has been formed it is threaded through thehollow spindles 11 and 12. As the rope 40 is drawn through the spindle12 the ends of the ribbons 27 are drawn with it and by rotating thedisks 8 and 9 the ribbons 27 are twisted observed through the fabricstery tacker while the strip 44 lar cross section.

The manner in which the several ribbons are wound in the finishedarticle is clearly shown in Fig. 4 which illustrates the present stripstill unfinished in that it has not been compressed to its final shape.The several ribbons 26 and 27 which go to make the strip are shownpartly unwound again after having once been completed in order that theparticular construction and method of manufacture of the present stripmay be readily un derstood.

Paper ordinarily twisted to form a strip by the upholis of rectangu-"does not tend to unwind by becoming loose but the stresses resultingfrom the twisted paper causes the finished strip to assume a corkscrewshape. The present strip avoids the possibility of such distortion byforming the strip of two oppositely wound sections and therefore thestresses that tend to distort the strip are exerted in oppositedirections and therefore neutralize each other.

Although a specific embodiment of the present invention has beenillustrated and described it is to be understood that various changesmay be made in the details of construction without departing from thespirit of the invention, and such changes are contemplated.

What I claim is: y

A tacking strip comprising a rope core formed of spirally twisted paperribbons, and an outer covering formed of paper ribbons twisted spirallyin a direction opposite to the ribbons of said rope core.

In testimony whereof I aflix my signature.

LESLIE F. BARNUM.

spirally around the rope .40 and thus combine to form a larger rope 41of oppositely twisted ribbons which is passed between the rollers 34.After the end of the rope 34 has been passed between the rollers 34 thesame prevent rotation thereof and by'starting the motor 19 the rollers34 are rotated thereby and tend to draw the rope outwardly. Movement ofthe rope outwardly can only be permitted by unrolling of the ribbons 26and as the ribbons unroll the set of disks land 2 are rotated in onedirection through the above described drive connections and therebytwist said ribbons spirally to form a contin uous rope 40. The rope 40is at the same time drawn through the spindle 12 and the disks 8 and 9are rotating in the opposite direction to the-disks 1 and 2 andtherefore cause the ribbon 27 to be wound in an opposite spiral aroundthe rope 40.

As the rope 41 passes between the rollers 34 it is compressed and formedin any shape or size desired as illustrated in Figures 5 and 6 whereinthe strip 42 is provided with a raised portion 43 which can beconveniently

